Book review from the WSJ – “There are many unsung heroes of ordinary life—nurses, trash collectors, accountants—whose job it is to take care of things that the rest of us take for granted. So too the librarian, that iconic figure who long presided over a sanctuary of books and guided readers, young and old, to the treasures of a vast print culture. But the profession has undergone a dramatic transformation of late because libraries themselves are not what they used to be. Today they have less to do with books per se than with computers, films, community events and children’s activities. They are, above all, public portals to the world of “information,” especially the online version. In “This Book Is Overdue!,” Marilyn Johnson, a former staff writer for Life magazine, takes us on a tour of the modern library and introduces us to the men and women who call it their professional home.”